1. Akatov, V.V., Akatova, T.V., and Shadzhe, A.E., Robinia pseudoacacia L. in the Western Caucasus, Russ. J. Biol. Invasions, 2016, vol. 7, no. 2, pp. 105–118.
2. Bucher, E., Kofler, V., Vorwohl, G., and Zieger, E., Das Pollenbild der Südtiroler Hönige, Biologisches Labor der Landesagentur für Umwelt und Arbeitsschutz, 2004, pp. 17–37.
3. Dokukin, Y.V., Prokof’eva, L.V., Shagun, Y.L., and Lebedev, V.I., Melliferous resources as a strategic factor in the development of beekeeping, Pchelovodstvo, 2017, no. 3, pp. 5–7.
4. Dudkina, N.I. and Vinogradova, Y.K., Analysis of the variability of fruits and seeds of Robinia pseudoacacia L. in invasive populations, in Estestvennye i invazionnye protsessy formirovaniya bioraznoobraziya vodnykh i nazemnykh ekosistem. Tezisy dokl. mezhdunar. nauch. konf. (Natural and Invasive Processes of Formation of Biodiversity of Aquatic and Terrestrial Ecosystems, Proc. Int. Sci. Conf. (Rostov-on-Don, June 5–8, 2007), Rostov-on-Don: Yuzhn. Nauchn. Tsentr Ross. Akad Nauk, 2007, pp. 114–115.
5. Ebel, A.L., Kupriianov, A.N., Strel’nikova, T.O., Ankopovich, E.S., Antipova, E.M., Antipova, S.V., Buko, T.E., Verkhozina, A.V., Doron’kin, V.M., Efremov, A.N., Zykova, E.Y., Kirina, A.O., Kovrigina, L.N., Lamanova, T.G., Mikhailova, S.I., Nozhenkov, A.E., Plikina, N.V., Silant’eva, M.M., Stepanov, N.V., Tarasova, I.V., Terekhina, T.A., Filippova, A.V., Khrustaleva, I.A., Shaulo, D.N., and Sheremetova, S.A., Chernaya Kniga flory Sibiri (Black Book of the Flora of Siberia), Novosibirsk: Geo, 2016.